Table 1.  Knee positions and ROM and correlations to subject data.

Independent Variable

Mean
(deg)

SD (±)
(deg)

Racket
Vel
(R2)

Skill Level (R2)

Height
(R2)

Wght
(R2)

Coach
(R2)

Years Played (R2)

Rear Knee Initial Pos: Setting Phase

27.4

5.7

.187

.212

.230

----

----

.190*

Rear Knee ROM:
Setting Phase

8.1
(flex)

3.8

.304

.316

----

---

---

.220

Front Knee Initial Pos: Swing Phase

55.5

11.3

.595

.470

.214*

----

.230

.121*

Rear Knee Initial Pos: Swing Phase

36.5

6.3

.305

.422

.244

---

.268

.189

Front Knee ROM:
Swing Phase

24.7# (exten)

15.2

.325

.311*

----

----

.241*

.140*

Rear Knee ROM:
Swing Phase

25.8
(flex)

7.4

.489

.372

----

----

.293

.177

All variables are significant at p<0.05 unless indicated by *.  # A minority of subjects exhibited further flexion of the front knee during the swing phase